Runoff Rundown
Rain that runs across the ground instead of soaking in is called this.
Stormwater runoff
Runoff from Viers Mill ends up in this big body of water.
The Chesapeake Bay
All the land that drains into the same body of water is called this.
Water that is stored underground is called this.
Groundwater
Is a parking lot permeable or impervious?
Impervious. Water can’t soak in.
A place where fresh river water mixes with salty ocean water is called this.
An estuary
In a watershed, water always flows from ____ ground to ____ ground.
High to low (downhill)
True or false: groundwater is an underground lake.
False. It fills the spaces between rocks, sand, and soil.
In our pour test, the water traveled the farthest on this surface.
Concrete/Sidewalk
Fill in the blank. Schoolyard → storm drain → Rock Creek → ______ → Chesapeake Bay
The Potomac River
Which of Earth’s four spheres is made of all LIVING things?
The biosphere
Underground rock and sand that hold water in the spaces between them.
An aquifer
Name TWO things runoff can pick up as it flows across our schoolyard.
Any two: soil, trash, oil, fertilizer, pet waste.
Is the Bay saltiest near the rivers or near the ocean?
Near the ocean. Salt water comes in from the ocean.
Rain washes soil into a stream. Which TWO spheres are interacting?
The hydrosphere (water) and the geosphere (soil)
About what percent of Earth’s water is salt water?
About 97%. Only about 3% is fresh.
Fast-moving water wears soil away. Scientists call this . . .
Erosion
Too much fertilizer makes algae grow, which uses up the oxygen. A part of the Bay where fish and crabs can’t survive is called this.
A dead zone
A stream or creek that flows into a bigger river is called this.
A tributary
Most of Earth’s FRESH water is found here.
Frozen in ice and glaciers